Lichtenstein Medal Newbury Award in 1951 named to the Roll of Distinguished Philatelists in 1956
Clarence William Hennan (May 24, 1894 – February 28, 1956) was an internationally recognized philatelist known for his collection, his exhibits at various stamp exhibitions, and for his expertise in evaluating the authenticity of rare stamps.
Philatelic literature
Hennan authored various articles and books on specific aspects of philately. These include:
Haiti: Postal History and Stamps (a series published over a 3-year period)